Bursting strength measuring device for paperboard processing

Abstract

The utility model discloses a bursting strength measuring device for paperboard processing, which comprises a working frame and a mounting frame, an adsorption lower positioning mechanism is fixedly mounted at the top of the working frame, an air supply pressing mechanism is arranged on the mounting frame, and a feeding mechanism is arranged at the top of the working frame and positioned on one side of the adsorption lower positioning mechanism. According to the utility model, the air supply pressing mechanism can descend to fix a paperboard to be detected between the adsorption lower positioning mechanism and the air supply pressing mechanism, and then the air supply pressing mechanism can supply air to apply pressure, so that the bursting strength of the paperboard is detected; when the air supply pressing mechanism descends, the adsorption lower positioning mechanism can position and adsorb the paperboard needing to be detected, manual supporting is not needed, and it is guaranteed that when the air supply pressing mechanism descends, the paperboard cannot deviate during detection; and the arranged feeding mechanism can sequentially feed the opened paperboards to the position above the adsorption lower positioning mechanism, and detection position deviation during feeding is prevented.

Description

Technical Field

[0001] This utility model relates to the field of paper testing technology, specifically a bursting strength measuring device for cardboard processing. Background Technology

[0002] Paperboard processing refers to the process of transforming raw paper materials into paperboard products with specific functions and uses through a series of processes. During paperboard processing, the bursting strength of the paperboard needs to be tested, and this testing is typically performed using a paperboard processing bursting strength tester. This test is crucial for evaluating the quality of paperboard because it directly affects its performance in practical applications, such as its ability to resist external pressure during packaging and transportation.

[0003] Existing methods for determining the bursting strength of paperboard mostly rely on pressurized air supply. However, multiple locations on a single sheet of paperboard typically need to be tested, requiring operators to constantly switch between these locations. This can easily lead to position shifts, and if the paperboard tilts or shifts during testing, it can significantly affect the accuracy of the bursting strength test. Therefore, we propose a bursting strength testing device for paperboard processing. Utility Model Content

[0004] The purpose of this invention is to provide a bursting strength measuring device for cardboard processing to solve the problems mentioned in the background art.

[0005] To achieve the above objectives, this utility model provides the following technical solution: a bursting strength testing device for cardboard processing, comprising a working frame, an adsorption lower positioning mechanism, and a feeding mechanism. Multiple sets of support legs are fixedly installed at the bottom of the working frame, and a mounting frame is fixedly installed at the top of the working frame. An adsorption lower positioning mechanism for positioning and adsorbing the cardboard to be tested is fixedly installed at the top of the working frame and below the mounting frame. An air supply and pressing mechanism for supplying air to the cardboard to be tested is provided on the mounting frame and above the adsorption lower positioning mechanism. A feeding mechanism for pushing the cardboard to be tested between the adsorption lower positioning mechanism and the air supply and pressing mechanism is provided at the top of the working frame and on one side of the adsorption lower positioning mechanism.

[0006] Furthermore, the adsorption positioning mechanism includes an adsorption positioning frame, a breaking hole, an adsorption hole, and an exhaust pipe. The adsorption positioning frame is fixedly installed on the top of the work frame. A breaking hole is provided at the top axial position of the adsorption positioning frame. An adsorption hole is provided on the adsorption positioning frame and outside the breaking hole. An exhaust pipe communicating with the adsorption hole is provided through one side of the adsorption positioning frame.

[0007] Furthermore, the feeding mechanism includes a slide rail, a slider, a fixed frame, a limiting sleeve, a limiting rod, and a pressure block. The top of the work frame is fixedly installed with a slide rail, and the fixed frame is slidably connected to the slide rail via a slider. The limiting sleeve is fixedly installed on the fixed frame, and the limiting rod is slidably connected inside the limiting sleeve. The bottom of the limiting rod is fixedly installed with a pressure block, and the top of the limiting rod is fixedly installed with a top plate. A spring is fixedly installed on the top of the fixed frame and outside the limiting sleeve, and the top of the spring is fixedly connected to the top plate.

[0008] Furthermore, the air supply and pressing mechanism includes a threaded sleeve, a threaded rod, a knob, a rotating seat, a connecting pipe, and an air supply cover. The threaded sleeve is fixedly installed on the mounting bracket. The threaded rod is internally threadedly connected to the threaded sleeve. A knob is fixedly installed on the top of the threaded rod. The bottom of the threaded rod is rotatably connected to the connecting pipe via the rotating seat. The bottom of the connecting pipe is fixedly connected to the air supply cover. An air supply pipe is fixedly connected to the connecting pipe. A pressure sensor is installed through one side of the air supply cover.

[0009] Furthermore, the air supply hood is made of transparent PVC material.

[0010] Furthermore, the inner wall of the fixing frame and the bottom of the machine pressing block are both lined with cushioning pads made of rubber material.

[0011] Compared with the prior art, the present invention has the following advantages: The air supply and pressing mechanism of the present invention can descend to fix the cardboard to be tested between the adsorption lower positioning mechanism and the air supply and pressing mechanism. Then, the air supply and pressing mechanism can supply air and apply pressure to test the bursting strength of the cardboard. When the air supply and pressing mechanism descends, the adsorption lower positioning mechanism can position and adsorb the cardboard to be tested without manual support, ensuring that the cardboard will not shift when the air supply and pressing mechanism descends. The feeding mechanism can feed the opened cardboard sequentially above the adsorption lower positioning mechanism to prevent the detection position from shifting during feeding. Attached Figure Description

[0012] Figure 1 This is a first perspective structural diagram of the present invention;

[0013] Figure 2 This is a second perspective view of the structure of this utility model;

[0014] Figure 3 This is a three-dimensional structural schematic diagram of the adsorption and positioning mechanism of this utility model;

[0015] Figure 4 This is a three-dimensional structural diagram of the fixing frame of this utility model.

[0016] In the diagram: 1. Working frame; 2. Support leg; 3. Mounting frame; 4. Adsorption lower positioning mechanism; 5. Air supply and pressing mechanism; 6. Feeding mechanism; 7. Adsorption positioning frame; 8. Crushing hole; 9. Adsorption hole; 10. Air extraction pipe; 11. Slide rail; 12. Slider; 13. Fixing frame; 14. Limiting sleeve; 15. Limiting rod; 16. Pressure block; 17. Top plate; 18. Spring; 19. Threaded sleeve; 20. Threaded rod; 21. Knob; 22. Rotary seat; 23. Connecting pipe; 24. Air supply hood; 25. Air supply pipe; 26. Pressure sensor. Detailed Implementation

[0017] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0018] Please see Figures 1-4 This utility model provides a technical solution: a bursting strength testing device for cardboard processing, including a working frame 1, an adsorption lower positioning mechanism 4, and a feeding mechanism 6. The bottom of the working frame 1 is fixedly installed with multiple sets of support legs 2, and the top of the working frame 1 is fixedly installed with a mounting frame 3. The adsorption lower positioning mechanism 4 for positioning and adsorbing the cardboard to be tested is fixedly installed on the top of the working frame 1 and below the mounting frame 3. An air supply and pressing mechanism 5 for supplying air to the cardboard to be tested is provided on the mounting frame 3 and above the adsorption lower positioning mechanism 4. The feeding mechanism 6 for pushing the cardboard to be tested between the adsorption lower positioning mechanism 4 and the air supply and pressing mechanism 5 is provided on the top of the working frame 1 and on one side of the adsorption lower positioning mechanism 4.

[0019] The air supply and pressing mechanism 5 can descend to fix the cardboard to be tested between the adsorption and positioning mechanism 4 and the air supply and pressing mechanism 5. Then, the air supply and pressing mechanism 5 can supply air and apply pressure to test the bursting strength of the cardboard. When the air supply and pressing mechanism 5 descends, the adsorption and positioning mechanism 4 can position and adsorb the cardboard to be tested without manual support, ensuring that the cardboard will not shift during testing when the air supply and pressing mechanism 5 descends. The feeding mechanism 6 can feed the opened cardboard sequentially above the adsorption and positioning mechanism 4 to prevent the detection position from shifting during feeding.

[0020] Please see Figure 1 , Figure 2 and Figure 3The adsorption positioning mechanism 4 includes an adsorption positioning frame 7, a breaking hole 8, an adsorption hole 9, and an exhaust pipe 10. The adsorption positioning frame 7 is fixedly installed on the top of the working frame 1. The breaking hole 8 is provided at the top axial position of the adsorption positioning frame 7. The adsorption hole 9 is provided on the adsorption positioning frame 7 and outside the breaking hole 8. An exhaust pipe 10 communicating with the adsorption hole 9 is provided through one side of the adsorption positioning frame 7.

[0021] In this process, after the cardboard to be tested is placed on the adsorption positioning frame 7, the external vacuum device works to extract air from the air extraction pipe 10. Then, the cardboard can be positioned using the adsorption hole 9. When the air supply and pressing mechanism 5 descends to apply pressure, the cardboard breaks through the breaking hole 8.

[0022] Please see Figure 1 , Figure 2 and Figure 4 The feeding mechanism 6 includes a slide rail 11, a slider 12, a fixed frame 13, a limiting sleeve 14, a limiting rod 15, and a pressure block 16. The top of the working frame 1 is fixedly installed with the slide rail 11. The fixed frame 13 is slidably connected to the slide rail 11 via the slider 12. The limiting sleeve 14 is fixedly installed on the fixed frame 13. The limiting rod 15 is slidably connected inside the limiting sleeve 14. The pressure block 16 is fixedly installed at the bottom of the limiting rod 15. The top plate 17 is fixedly installed at the top of the limiting rod 15. A spring 18 is fixedly installed at the top of the fixed frame 13 and outside the limiting sleeve 14. The top of the spring 18 is fixedly connected to the top plate 17.

[0023] When the cardboard needs to be fed, the top plate 17, the limiting rod 15 and the pressure block 16 are pulled up along the limiting sleeve 14. Then the long strip of cardboard to be tested is placed inside the fixed frame 13. After that, the top plate 17 is released, and the pressure can be provided by the spring 18. This can fix the long strip of cardboard between the pressure block 16 and the fixed frame 13. Then the fixed frame 13 is pushed, and the slide rail 11 and the slider 12 are used for positioning. The long strip of cardboard is then sent to the adsorption positioning mechanism 4 for testing.

[0024] Please see Figure 1 and Figure 2 The air supply and pressing mechanism 5 includes a threaded sleeve 19, a threaded rod 20, a knob 21, a rotating seat 22, a connecting pipe 23, and an air supply cover 24. The threaded sleeve 19 is fixedly installed on the mounting bracket 3. The threaded rod 20 is threadedly connected to the inside of the threaded sleeve 19. The knob 21 is fixedly installed on the top of the threaded rod 20. The bottom of the threaded rod 20 is rotatably connected to the connecting pipe 23 through the rotating seat 22. The bottom of the connecting pipe 23 is fixedly connected to the air supply cover 24. An air supply pipe 25 is fixedly connected to the connecting pipe 23. A pressure sensor 26 is installed through one side of the air supply cover 24.

[0025] Once the cardboard feeding and positioning are complete, the knob 21 is rotated to make the threaded rod 20 rotate and move downward along the threaded sleeve 19. This allows the air supply hood 24 to contact and press against the top of the cardboard. Then, an external air supply pump supplies air to the air supply pipe 25, which can apply pressure to the cardboard for detection. The pressure sensor 26 then detects the pressure changes inside the air supply hood 24, and can detect the pressure value at the moment the cardboard breaks.

[0026] Please see Figure 1 and Figure 2 The air supply hood 24 is made of transparent PVC material, and the transparent material of the air supply hood 24 can detect the detection status of the cardboard in a timely manner.

[0027] Please see Figure 4 The inner wall of the fixing frame 13 and the bottom of the pressing block 16 are both covered with a cushioning pad made of rubber material. The cushioning pad made of rubber material can prevent the cardboard from being over-pressed and damaged when positioning the cardboard.

[0028] In use, firstly, the air supply and pressing mechanism 5 descends to fix the cardboard to be tested between the adsorption lower positioning mechanism 4 and the air supply and pressing mechanism 5. Then, the air supply and pressing mechanism 5 supplies air and applies pressure to test the bursting strength of the cardboard. While the air supply and pressing mechanism 5 descends, the adsorption lower positioning mechanism 4 positions and adsorbs the cardboard to be tested, eliminating the need for manual support and ensuring that the cardboard does not shift during testing. The feeding mechanism 6 sequentially feeds the opened cardboard above the adsorption lower positioning mechanism 4, preventing shifting of the testing position during feeding. After the cardboard to be tested is placed on the adsorption positioning frame 7, the external vacuum device operates, evacuating air from the suction pipe 10. The cardboard can then be positioned using the adsorption hole 9. When the air supply and pressing mechanism 5 descends and applies pressure, the cardboard can be broken through the breakage hole 8 at the breakage point. When the cardboard needs to be fed, pull the top plate 17, limit rod 15 and pressure block 16 to lift along the limit sleeve 14. Then place the long strip of cardboard to be tested inside the fixed frame 13. After that, release the top plate 17, and the spring 18 can provide pressure to fix the long strip of cardboard between the pressure block 16 and the fixed frame 13. Then push the fixed frame 13, and the slide rail 11 and slider 12 can be used to position and feed the long strip of cardboard into the suction lower positioning mechanism 4 for testing. After the cardboard feeding and positioning is completed, rotate the knob 21 to make the threaded rod 20 rotate and move down along the threaded sleeve 19, so that the air supply hood 24 can contact and press the top of the cardboard. Then use the external air supply pump to supply air to the air supply pipe 25 to apply pressure to the cardboard for testing. The pressure sensor 26 installed can detect the pressure change inside the air supply hood 24 and detect the pressure value at the moment of cardboard breakage in time.

[0029] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.

Claims

1. A paperboard processing burst resistance measuring device, comprising a workbench (1), an adsorbing lower positioning mechanism (4) and a feeding mechanism (6), a plurality of supporting legs (2) are fixedly installed at the bottom of the workbench (1), and a mounting rack (3) is fixedly installed at the top of the workbench (1), characterized in that: The top of the workbench (1) and below the mounting frame (3) is fixedly installed with an adsorption lower positioning mechanism (4) for positioning and adsorbing the detection paperboard, the mounting frame (3) and above the adsorption lower positioning mechanism (4) is provided with a gas supply pressure mechanism (5) for supplying gas to the detection paperboard, and the top of the workbench (1) and on one side of the adsorption lower positioning mechanism (4) is provided with a feeding mechanism (6) for pushing the detection paperboard between the adsorption lower positioning mechanism (4) and the gas supply pressure mechanism (5).

2. The burst strength measuring device for paperboard processing according to claim 1, characterized in that: The adsorption lower positioning mechanism (4) comprises an adsorption positioning frame (7), a crushing hole (8), an adsorption hole (9) and an air exhaust pipe (10), the adsorption positioning frame (7) is fixedly installed on the top of the workbench (1), the top of the adsorption positioning frame (7) is provided with a crushing hole (8) at the axial position, the adsorption positioning frame (7) and outside the crushing hole (8) is provided with an adsorption hole (9), and one side of the adsorption positioning frame (7) is provided with an air exhaust pipe (10) penetrating and communicating with the adsorption hole (9).

3. The burst strength measuring device for paperboard processing according to claim 2, characterized in that: The feeding mechanism comprises a sliding rail (11), a sliding block (12), a fixed frame (13), a limiting sleeve (14), a limiting rod (15) and a pressing block (16), the top of the workbench (1) is fixedly installed with a sliding rail (11), the sliding rail (11) is slidably connected with a fixed frame (13) through a sliding block (12), the fixed frame (13) is fixedly installed with a limiting sleeve (14), the limiting sleeve (14) is slidably connected with a limiting rod (15) inside, the bottom of the limiting rod (15) is fixedly installed with a pressing block (16), the top of the limiting rod (15) is fixedly installed with a top plate (17), the top of the fixed frame (13) and outside the limiting sleeve (14) is fixedly installed with a spring (18), and the top of the spring (18) is fixedly connected with the top plate (17).

4. The burst strength measuring device for paperboard processing according to claim 3, characterized in that: The gas supply pressure mechanism (5) comprises a threaded sleeve (19), a threaded rod (20), a knob (21), a rotating seat (22), a connecting pipe (23) and a gas supply cover (24), the mounting frame (3) is fixedly installed with a threaded sleeve (19), the threaded sleeve (19) is threadedly connected with a threaded rod (20) inside, the top of the threaded rod (20) is fixedly installed with a knob (21), the bottom of the threaded rod (20) is rotatably connected with a connecting pipe (23) through a rotating seat (22), the bottom of the connecting pipe (23) is fixedly communicated with a gas supply cover (24), the connecting pipe (23) is fixedly communicated with a gas supply pipe (25), and one side of the gas supply cover (24) is provided with a pressure sensor (26).

5. The burst strength measuring device for paperboard processing according to claim 4, characterized in that: The manufacturing material of the gas supply cover (24) is transparent PVC material.

6. The burst strength measuring device for paperboard processing according to claim 5, characterized in that: The inner wall of the fixed frame (13) and the bottom of the machine pressing block (16) are both paved with a buffer pad made of rubber material.

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